From: Bertram Scharpf <lists@...>
Date: 2009-09-25T21:09:48+09:00
Subject: Re: How to ask for numerica input

Hi,

Am Freitag, 25. Sep 2009, 11:12:37 +0900 schrieb David A. Black:
> On Fri, 25 Sep 2009, Fred Ige wrote:
>> I am trying to make a simple temperature converter, and I want to ask
>> for F temperature (numerical value)
>>
>> what command do I use?
>
>   print "Enter a number: "
>   line = gets
>   num = line.to_i
>
> You can get fancier with error-checking, etc., but that's the basic
> idea.

This does the error checking:

   num = Integer line

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de